Just wondering if anyone can help me solve a problem with the automatic index links in InDesign CS5 ...

Currently, if i delete the hyperlinks that appear to be linked to the index in the hyperlink menu ... they still appear as links in a PDF, there are also links that don't even appear in the hyperlinks menu that also can't be deleted. It seems they are generated when the index is generated but I have no clue where the information is. So it seems I'm stuck with inconsistent links in an ebook? It would be neater to be able to clear them all if possible.